[Hiring] Senior Developer @S Base Technologies

Role Description

Senior Developer (.NET 10 LTS / .NET Core) – Walmart

Client: Walmart

Work Location: Remote

Duration: Rolling Contract

Rate: $65/hr w2 to the candidate + $5 to Sbase

Candidate Preferences (Submit only below preferred)

• Ex-Walmart
• Enterprise Technology – Amazon, Microsoft, PayPal, etc FAANG, MANGO, Magnificent Seven.

For Ex-Walmart Candidates:

• Need their old manager's name.
• They must have a 6-month cool-off period since their last engagement.
• NO CASPEX EVER

Qualifications

• Must-Have Skills
• .NET Core
• C#
• Azure
• IoT

Requirements

• Mandatory Skills
• Programming Languages/Tools
• C# (C# 14)
• ASP.NET Core Web API (ASP.NET Core 10)
• Azure IoT Hub SDK (Azure IoT SDK for .NET)
• Apache Kafka (Confluent .NET client)
• Development Framework
• .NET 10 (LTS) / .NET Core
• Entity Framework Core 10
• OpenAPI for service contracts
• Deployment Framework
• Docker
• Kubernetes
• Helm
• Unit Tests Framework
• xUnit (v3)
• Moq (or NSubstitute)
• Fluent Assertions (or AwesomeAssertions)
• Fakes
• Testcontainers (integration tests)
• Load Tests Framework
• JMeter
• Similar tools: k6, Azure Load Testing
• Version Control System
• Git
• GitHub Enterprise
• GitHub Actions
• Storage
• SQL Server / Azure SQL Database
• Azure Blob Storage
• Azure Cosmos DB
• Cloud Services (Microsoft Azure)
• Azure IoT Hub
• Azure IoT Hub Device Provisioning Service (DPS)
• Azure IoT Operations (Azure Arc-enabled)
• Azure App Service
• App Service Environment (v3)
• Azure Kubernetes Service (AKS)
• Azure App Configuration
• Azure Key Vault
• Managed Identities
• Azure Event Hubs (Kafka-compatible endpoint)
• Logging
• Splunk
• Azure Log Analytics
• Azure Application Insights
• OpenTelemetry
• Serilog
• Monitoring and Alerting
• Prometheus
• Grafana
• MMS
• XMatters
• Azure Monitor
• Authentication
• Identity and Access Management (IAM)
• Microsoft Entra ID (formerly Azure AD)
• OAuth 2.0 (RFC 9700 security best practices, PKCE; OAuth 2.1 draft)
• SAML 2.0
• OpenID Connect 1.0
• JWT (RFC 7519/RFC 9068)
• mTLS (RFC 8705)
• PingFederate
• Service Registry
• Architectural Patterns, Design Patterns and Styles
• Client-Server
• REST
• Event-driven / publish-subscribe
• CQRS
• Clean Architecture
• TDD
• Strategy pattern
• Knowledge on Protocols
• HTTP/2
• MQTT (3.1.1 / 5.0)
• AMQP 1.0
• gRPC
• OPC UA is an added advantage
• Knowledge on Networking
• TCP/IP
• DNS
• VLANs
• VPN/private connectivity
• PKI and Security
• PKI (X.509 certificates, certificate lifecycle management)
• TLS 1.3 (RFC 8446)
• OWASP Top 10

Benefits

• Hands-on experience in developing custom ASP.NET Core middleware and using built-in rate limiting, health checks and output caching.
• Hands-on experience in Java.
• Good understanding of Azure IoT Edge architecture (IoT Edge 1.6 LTS) and components like IoT Edge devices, Edge Gateways, Edge Modules, Edge deployments, etc.
• Working experience in providing solutions for stability, interoperability, portability, security and scalability of system architecture.
• Knowledge on Azure Edge Infra activities along with Linux commands is an added advantage.
• Azure Certifications like AZ-204 (Azure Developer Associate; replaces the retired AZ-203), AZ-400 (DevOps Engineer Expert) or AZ-305 (Azure Solutions Architect Expert).
• Awareness of post-quantum cryptography readiness: NIST FIPS 203 (ML-KEM), FIPS 204 (ML-DSA) and FIPS 205 (SLH-DSA), with FIPS 206 (FN-DSA) in development; hybrid TLS key exchange and crypto-agility practices.
• Familiarity with Zero Trust principles and secure supply chain practices (SBOM, dependency and container image scanning).